Motorola VWA8 User manual

l. Tune in the desired station with the manual tuning knob;
tune carefully until you are exactly on station.
Z, Pull out the first pushbutton, to unlock it for station
MOTOROLA AUTO RADIO WARRANTY SERVICE
l. The definition of a Motorola Branded Model is one that
is brandedwiththe Motorolaname, and distributed to dealers
through authorized Motorola Distributors.
2. Before performing a warranty repair on a Motorola
Branded Auto Radio, you must first receive from the cug-
tomer the Cugtomer's Warranty Policy. This policy must
be filled out by the selling dealer at the time of retail pur-
chase. The Customerrs Warranty Policy must show the
radio to be within the ninetv-dav waMqly pgllgllif the re-
pair is to be handled dnder the Motorola Auto Radio War-
ranty Plan.
3. The removal or reinstallation of the radio, the elimina-
tion of motor noise, tire static, electrical interference, o!
faulty installatioa and aerial repairs are not considered as
/-- warlauty repairs. Consequently, charges for theee Eelv-
/ ices are to be borne by the customer.
AUTO RA D IO
MODEL
VWAS
set-up, then push button in firmly to eet and lock button.
3. Followtheabove procedure for the remaining four buttons.
STATION PROCEDURE FOR BRANDED MODELS
4. Fill in the Motorola Auto Radlo Warranty Labor Claim,
Part No. 54P480884, and mail White and Green copies to
the Motorola Dlstribgtor serving your area. The Yellow
copy is to be retained by the Warranty Service Station for
hie files.
5. Defective parts for war!anty repairs made on Motorola
Branded Auto Radios are to be sent to your Motorola Dis-
tributor for free replacemeat, supported with the defective
parts return form which you are now using.
6. Only those service shops autlrorized by their Motorola
Distributor can perform repairs within the warranty period
on a no-charge basis to the customer. lf you are not al-
ready authorlzed as a Motorola Auto Radio Warranty Serv-
ice Station, and you are interested in handling this service,
please contact your Motorola Distribdtor for complete details,
GENERAL INFORMATION
TYPE - Automotive typesuperheterodyne receiver de'signed TUBE COMPLEMENT - 6BA6 RF amp
for custom installation in the 1958 Volkswagen car. 6BE6 Converter
68A6 IF amp
TUNING RANGE - 540 to 1610 Kc IF - 262.5 Kc 6CR6 DeI-AVC-AF amp
6AQ5 Pwr amp
OPERATES FROM - 6 volt storage battery 6X4 Rectifier
TO SET PUSHBUTTONS
fl,OTOROLA
Pra Ho. 68P542583
,N(C.454:o WEST .AU6USTA BLVD. cHtcAGo 51, lLLtNOls
&BATTR.Y
Prlce lO Centa Printed in U.S.A.

Connect an output meter across the
erator output to maintain l" 79 voltE
photo for adjustment locations..
AL IGNMENT
speaker voice coil; set volume to maximum and tone to treble, Attenuate the signal. gen-
on output meter at all timeg to prevent overloading the receiver" Refer to aligarbeut l
NOTE: -Do not perform steps 3, 4, 5 &.6 unless the tuner has been tamiered wlth or components have been replaced. Re-
move the escutcheon, dial gcale assembly and dial background plate to expose the core screws. Before proceeding with step
3, back the tunlng cores as far ae possible out of the coils to eliminate their effect on trimmer adjustments.
3' l**;i:lirJ,",,rl ""*' l"o""u"'oo l"un' loo'.."'rorma<imum'
4' I I ""*" l**'*t" l'''*" l^o'""'rorrnaximum'
5. I I 1610Kc I ni.oa"toe I u,rn, loor'"rrormaximum.
6, Repeat steps 4 and 5 until no further increaee, then cement tuning cores in place. Sttip 5 should be the last adjustment,
o*rttorRrMMER I I I I
7" I - | - | Weat<station I I I Witfrradioinstalledincarancian-
I I I around 1400 Kc I I tenna fully extended, adjust an-
I I I I I tennatrimmerformaximum.
STEP GENERATOR CONNECTION
GENERATOR
FREQUENCY
(400 cycle mod) TUNER SET TO ADJUST REMARKS
iF ALIC
'.1I
Rr' ALI,
z. I
iNMENT
Ant recept thru
,lmf&chassie
SNMENT
Ant recept thru
dummy (see detail)
262,5 Kc
16l0 Kc
Hi end stop
Hi end stop
L, 2, 3 &.4
5,6&7
Adjust for maximum,
Adjusi for maximum.
rl-r---Tl z
r[_l;
T2 CONN
6946
RF AMP 6846 6CR6 Dfr-AVC-AF AMP 6AQ' PU'R AMP
cl
105
NOM
I
I
I
F
I
I
I
I
I
I
I
I
t_____________
CAPACIToRS - Decinal v6lues in Mt others in l,lilI
unl6s otherwise 5pEilied.
Vol-TAGtS - Measur€d lrcm poini indicaled lo chdssi5
wlth 6 WVM. 104 tolerance. No signal inpul.
NPUT Vol.lAG['7V DC.
TUt{lilG RANG! - t40 KC to 1610 KC,
It fREautNcY - 262.5 KC. 0N-0fF swtTcH
cl9
S PARl(
PIAT! T
I
7V0C._
SCEDf,ATIC DIAGMT

II
II
p r2$?
6CR6
DET-AVC-
AF AMP
BANERY
LEAD
c17
6CR6
DI'TIY ANTE$}TA
DETAIL ilil=-
I
IE
e9
33
6y
C'U
FO
ALIGNTENT ADJUSTMNTS A}{D PARTS LOCATIONS

REPLACEMENT PARTS LIST
NC/IE: When orderlng parts, specify nodel number of set lD addltion to part nunber &nd deEcrlptloD of part,
Electronlc parts of equlvalent ratlng are not necessarlly of equivaLent st&ndards, The codpoDents
Iisted in this Service liarual have been choseu for rellab1l1ty ald applicability to the apeclfic
cLrcuits involved. For @xinun custoner satisfactl.on and nlnlnlzed call-backs, use the exact
Uotorola parts replacenent.
\
Ref. Part
No. Nunber
ELECTRICAL PARTS
c-l 20K54244't
c-2 8K740911
c-3 20K5420r4
c-4 21R410089
c-5 8R121005
c-6 21K121698
c-7 21R410036
c-8 21R115593
c-9 20K542092
c-10 8R121.567
c-rr 2rR442726
c-Iz 8R121002
c-13 8R121568
c-L4 8R121567
c-15 4R121002
c-16 21R4rO12r.
c-r7 23A445677
c-18 8R121000
c-19 64K530177
c-20 4KL22076
c-zt 4KL22076
c-22 4Rt22269
E-l 50C634230
E-2 65R16248
E-3 65n10867
E-4 4883333
L-l 24K537545
L-2, 3, 4 -
L-5 24K5420L9
L-6 2445349t4
Reslstors - Note:
R-l 6Kr22324
R-2 6R5734
R-3 6R6014
R-4 6K119405
R-5 6P'6432
R-6 6Kt220t2
R-7 6Kt2L299
R-8 6K119405
R-9 188542013
R-r0 6K119407
R-11 6K119407
R-12 6KL22324
R-13 6R50r5
n-14 6R6432
R-15 6R6014
R-16 6R476130
R-17 6KL25697
B-18 6K125697
T-l 24K54249L
T-2 24K542675
T-3 25870t71
T-4 25C537L64
XECIIANICAL PARTS
Ref. Part
No. Nunber
Speaker, Pllt 5";
Fuse: 9 anp
Bulb, pilot llght:
Vlbrator, 6V
3.2 ohn VC
6\t #44
Descr lpt ioD
Capacitor, Dlca trin: 40 mf to 430 nnf
Capacitor, paper tub: .003 nf 200V
Capacl.tor, mica trin: - 20 nnf to 120 mf
Capacitor, cer disc : 27 mf 5OOV l{PO
Capacitor, paper tub: .O5 mf 2OOV
Capacltor, cer dlsc: 22O m! sOOV
c&pacltor, cer dlsc: 1oo ml 5o0v NTCTsOPPI
Capacitor, cer disc: 47 mf SOOV I{TC?5OPPX
Capacitor, nlca trinS 3LO mf to 39O mf
Capacitor, paper tub: .O5 mf 4OOV
Capacitor, cer disc: .01 nf sOOY
Capacitor, paper tub: ,OI nf 4OOV
Capacitor, paper tub! ,O02 nf 6OOV
Capacitor, p&per tub3 ,05 nf 400V
Capacltor, paper tub: .01 nf 4OOV
Capacltor, cer disct 47O rof 5OOV
Capacltor, electrolytic: 10-f5 d/350V;
20 nf/25v
Capacitor, paper tub3 .0O4 mf 600V
Spark Plate
Capacitor, paper tub: .5 nf 1OOV
Capasitor, pap€r tub: .5 nf toOV
Capacitor, paper tub: ,O2 ml 1OO0V
4244215 CIlp, vlbrator groundlDg
15C54167O Cover, bot (wiring side)
15K54I823 Cover, top (tube slde)
*328542237 Gasket (covers dial 6ca1e ret brkt)
36K542OO5 Knob, dlruy
368522020 Knob, tone
436K542973 Krob, vol & tunlng
1Y542214 Polnter
*38K542956 Pushbutton
9K54199I Receptacle, fuae
43.s542775 Scale, dial
18541917 Shaft, Drual tuning: lncl bushllg
9A530168 Socket, ant
9A7O2OA Socket, 4 pln (vlbrator)
9K541697 Socket, pilot light
9K539132 Socket, tube: 7 pin nln
29A762aO Ternlnal, pin: bleck (spkr leads)
29K762a2 Ternlnal, pin3 rhite (sptr le&ds)
4K481689 washer, felt (kDobs)
XOI'NTING PABTS & ACCESSORIES
*78542795 Bracket, front redlo ntg (LH)
[phone] Bracket, front radlo mtg (RE)
178542767 Bracket, rear radlo ntg
AA449L cordenser, noise suppresston (iglltloa coil
88538244 Condenser, noise suppression (volt reg)
2A2869 Nut, hex: 7/16-28 (radlo utg)
*3s128062 gcrew, tapplug: #I0 x 3/8 (spkr ntg)
6A4141 Suppressor,dlstrlbutor
*138542780 Trimplate
TI'NER 77K542165 (AT-233) PARTS
Descript lon
24C535458 CoiI, ant
24C535454 Coil, RF
24C535456 Coll, osc
77K542L65 Tuner, AT-233: conplete
1V56O625 Adjusting Screw & Nut Assenbly
IA54O83O Arn, pointer
458534574 Arn, pushbutton extetrslou
43A4326 Beartng, ball
M35L14 CLutch Assenbly: lncl frlction washers,
croun geEr & pinion ge&r
I\54225A Coils & ttg Plate Assedbly: I\cl L2, L3,
L4 & ntg plate
76K534642 Core, Lron tuning (ant & Rf coil)
76K534644 Core, lron tuning (osc coil)
5K536918 Gromet, coil ntg (ant & RF)
5K534727 Gromet, col1 ntg (osc)
5K5345O9 cromet, core mtg
45A534509 L1nk, connecting
LK542255 Plate, coil ntg
42K53466O Retainer, clutch
35124064 Screr, tapping? #4 x 5/L6 (BouDts coll ntg
p1&te)
768534589 Sleeve, lron
41A534566 Spring, connectlng link
41A501095 Spring, polnter
4IA534538 Spri!9, split gear antl-backl&sh
41A535493 Sprlng, tension (clutch bar return)
4A5O1O39 l{asher, "C" (poj"nter arn)
The volune of repl&cement on the followlng pBrts 16 amll,
cousequently, it ls suggested that ordering be doue only
aE required.
45C534697 Arn, cLutch release (tuner part)
+lr 42884 Klt, radio ntg parts
Choke, alt spark
See TuDer Replacenent ltart's List
Choke, RF
Choke, hash
A1l resistors are i.nsulated carbon type
uDless othervlse specif i.ed
I meg 2& \/2V
18,000 l.o% llf
33O,OO0 20% L/2V
22,OOO 2q V2v
270 L& r/zv
6800 tub 2v
47,OOO 10% L/Z\t
22,OOO 2& L/Z\r
Dual Control & Seitch: voL 2 neg, tap at
I oeg! tole 5OOK
3.3 nes 20ft L/N
3.3 meg 20% L/2V
I neg 20$ L/2fl
22O,OOO 2& L/n
27O IUh r/2v
33O,0OO 20% r/2V
22OO 20% ZX
56 1& 1r
56 r0* 1l{
Transforner, lst IF: 262.5 Kc
Transformer, 2nd IF: 262,5 Kc
Tralsforner, output
TraDsformer, power
L-2
L-3
L-4
78541865 Bracket, dial bsckground Note:
7C54L494 Bracket, dial scal.e ret
+43K342777 Bushlng, rtg
42A500196 Cttp, dtal scale ret
49E733793 Cllp, IF ntg
*New lten, Appeara ln any Llst fo! Flrst Tine